On-machine measurement for intricate EDM parts

With this technology, the company says it is possible to visualise and measure components directly on the machine tool and correct machining errors. With IVU, accurate manufacture of highly detailed parts, such as micro surgical instruments, parts for luxury watches, and tooling for the mass production of electronic components, is assured. Said to be a perfect complement to GF AgieCharmilles' CUT 1000 machine, IVU also ensures faster and more accurate set-up for the machining of small and intricate parts, with high accuracy measuring cycles available for edges, part alignment and centring – to micron accuracy. Positions for micro starting holes can be quickly and easily established by IVU before machining, with assistance for the threading of thin wires provided. Other features of IVU include first cavity or intermediate control in multi-cavities, including 'go', 'no go', or 'correction' for the next cavity, fast control of part position and profile, and a reliable reporting function. Dimensional measurements, including distances between edges, hole diameters and contour profiles, while contour scanning can be performed automatically, with the measured contour subsequently compared to the original form. Measurements in the X-Y directions to automatically recognise and measure the position of a workpiece edge, with this allowing users to measure the contour of a hole or an arc and precisely determine the centre position, diameter or elliptical nature of a hole. IVU's charge-coupled device (CCD) camera produces crystal clear images, even in less than ideal lighting conditions. Fixed on the machine's upper head and with a backlight installed on the lower head, the camera's autofocus provides images that are analysed by dedicated software to deliver the metrology information required. The crystal-clear images also support visual inspection.